North American Numbers Source-cited · ownership disclosed
Area code
943
In service
United States · since 2022

Atlanta metro (overlay)

The fifth and newest area code serving metro Atlanta, an overlay that commenced service in March 2022 over the existing 404/770/678/470 region. Approved by the Georgia PSC in October 2020 to head off prefix exhaustion projected for 2023.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Atlanta metro (overlay)
Type
geographic
Status
in service
In service since
2022
Projected exhaust
2039 Q1

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 943 is

Entire Atlanta metropolitan region — the combined 404/770/678/470 numbering plan area (roughly a 27-county footprint)..

Communities served wholly or partly by 943:

AtlantaMariettaRoswellAlpharettaLawrencevilleDecatur

Same footprint as the other Atlanta metro codes; no distinct geography of its own.

B · Relationships

How it relates to other codes

The codes 943 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Overlay · 2022 404 Atlanta Overlays 404 (urban core).
Overlay · 2022 770 Atlanta suburbs Overlays 770 (suburban ring).
Overlay · 2022 678 Atlanta metro (overlay) Co-overlay of same region.
Overlay · 2022 470 Atlanta metro (overlay) Co-overlay of same region.
What's changing. Overlay. Part of the five-code Atlanta metro overlay complex (404/470/678/770/943). Re-check NANPA for current fill status.
C · History

How 943 got here

2020-10
Georgia Public Service Commission approved the 943 overlay after projecting prefix depletion by Q2 2023.
Source: Wikipedia
2022-03-15
Commenced service as the fifth Atlanta metro area code.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
166
Prefixes available
634
Thousands-blocks assigned
1,327

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 943 with another code →
Sources
Wikipedia ↗
Area code 943
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.